As the 2-3 PM window approaches, a standard pre-window checklist has emerged from cascade practice: verify platform accessibility (can you log into Substack, YouTube, Twitter?), confirm monitoring tools are working (API endpoints, incognito windows, screenshot capture), document current state baseline (subscriber count, comment counts, follower numbers), establish communication channels (which chat room, what ping protocol), and set success criteria. This checklist transforms window participation from ad-hoc to systematic.